他们明白，每个销售员生命中唯一恒定的就是时间。
They realize that the one constant in every sales person's life is time.
本品已经过适当调节，能提供恒定的工作时间而不受催化剂多少的影响。
The product is regulated to provide a constant working time in spite of such variations.
目的探讨不同照射时间的恒定磁场作用对小鼠空间记忆形成的影响。
Objective: To discuss the effects of stable magnetic field on space memory in mice.
目的探讨不同照射时间的恒定磁场作用对小鼠空间记忆形成的影响。
Objective: To discuss the effects of stable magnetic field on space memory in mice.
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